[Kernel-packages] [Bug 1632471] Comment bridged from LTC Bugzilla

2016-11-14 Thread bugproxy 
--- Comment From vipar...@in.ibm.com 2016-11-14 05:34 EDT---
*** Bug 148569 has been marked as a duplicate of this bug. ***

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https://bugs.launchpad.net/bugs/1632471

Title:
  Briggs: ISST-LTE:UbuntuKVM: system hangs, console shows all of these
  messages  raw_spin_lock_irqsave, rcu_sched, rcu_bh detected stalls on
  CPUs #166

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Yakkety:
  Fix Released

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2016-08-15 11:56:22 
==
  We have the SuperMicro system "Briggs" that have 2 Qlogic cards on it  (16Gb 
and 8Gb) connect to the V7000 storage. 
  We install Ubuntu 16.04.1 kernel -34 on it and run test BASE/IO over weekend 
on the bare metal mode . System seems to hang now, it responses to ping only, 
nothing else. 
  Open the console, it doesn't give out the login promt except all of these 
errors print out ...
  [323294.686996] INFO: rcu_bh detected stalls on CPUs/tasks:
  [323294.687105]   3-...: (1 GPs behind) 
idle=813/140/0 softirq=9880043/9935887 fqs=48656494
  [323294.687187]   71-...: (1 GPs behind) 
idle=a99/140/0 softirq=9875483/9935684 fqs=48656494
  [323294.687268]   153-...: (1 GPs behind) 
idle=321/140/0 softirq=3948104/3976836 fqs=48656494
  [323294.687346]   (detected by 75, t=48672447 jiffies, g=79, 
c=78, q=706)
  [323294.687427] Task dump for CPU 3:
  [323294.687462] gmond   R  running task0 16394  1 
0x00040004
  [323294.687542] Call Trace:
  [323294.687568] [c03fb3bdb700] [c03fb3bdb740] 0xc03fb3bdb740 
(unreliable)
  [323294.687648] [c03fb3bdb8d0] [c03fec8de900] 0xc03fec8de900
  [323294.687716] [c03fb3bdb920] [0020] 0x20
  [323294.687773] [c03fb3bdb960] [c03fb3bdb9b0] 0xc03fb3bdb9b0
  [323294.687842] [c03fb3bdb9b0] [c00f9d14] 
task_sched_runtime+0xc4/0x250
  [323294.687922] [c03fb3bdba20] [c01003d8] 
thread_group_cputime+0xc8/0x1c0
  [323294.688002] [c03fb3bdba80] [c0100720] 
thread_group_cputime_adjusted+0x40/0x80
  [323294.688082] [c03fb3bdbae0] [c0385428] do_task_stat+0x2b8/0xaf0
  [323294.688152] [c03fb3bdbc60] [c037c710] 
proc_single_show+0x80/0x100
  [323294.688232] [c03fb3bdbcb0] [c0317808] seq_read+0xe8/0x530
  [323294.688302] [c03fb3bdbd50] [c02e170c] __vfs_read+0x6c/0xe0
  [323294.688412] [c03fb3bdbd90] [c02e2464] vfs_read+0xa4/0x1c0
  [323294.688481] [c03fb3bdbde0] [c02e356c] SyS_read+0x6c/0x110
  [323294.688550] [c03fb3bdbe30] [c0009204] system_call+0x38/0xb4
  [323294.688618] Task dump for CPU 71:
  [323294.688653] fs_inod R  running task0 151173  78575 
0x00040004
  [323294.688735] Call Trace:
  [323294.688760] [c03fbcd17890] [c05cc0adee00] 0xc05cc0adee00 
(unreliable)
  [323294.688840] Task dump for CPU 153:
  [323294.688876] fs_inod D 3fffafd1efb8 0 151172  79296 
0x00040004
  [323294.688956] Call Trace:
  [323294.688981] [c05a398675e0] [004352ca] 0x4352ca (unreliable)
  [323294.689049] [c05a398677b0] [c03feee5e900] 0xc03feee5e900
  [323294.689118] [c05a39867800] [c0ae8604] __schedule+0x314/0x990
  [323294.689187] [c05a398678d0] [c0ae8cc8] schedule+0x48/0xc0
  [323294.689257] [c05a39867900] [c0aecc08] 
rwsem_down_write_failed+0x2b8/0x410
  [323294.689337] [c05a39867990] [c0aebdf8] down_write+0x78/0xa0
  [323294.689407] [c05a398679c0] [c02797bc] 
unlink_file_vma+0x4c/0x90
  [323294.689475] [c05a39867a00] [c0270110] 
free_pgtables+0x100/0x1c0
  [323294.689543] [c05a39867a50] [c027d4e0] exit_mmap+0x100/0x1a0
  [323294.689612] [c05a39867b10] [c00b5098] mmput+0xa8/0x1b0
  [323294.689681] [c05a39867b40] [c02ec740] 
flush_old_exec+0x680/0x840
  [323294.689792] [c05a39867bb0] [c036412c] 
load_elf_binary+0x43c/0xf90
  [323294.689872] [c05a39867c90] [c02ecbb8] 
search_binary_handler+0xe8/0x2a0
  [323294.689951] [c05a39867d20] [c02edad0] 
do_execveat_common.isra.14+0x600/0x850
  [323294.690031] [c05a39867df0] [c02ee13c] SyS_execve+0x5c/0x80
  [323294.690098] [c05a39867e30] [c0009204] system_call+0x38/0xb4
  [323294.926994] INFO: rcu_sched self-detected stall on CPU
  [323294.927058]   113-...: (48720536 ticks this GP) 
idle=df7/141/0 softirq=3730603/3730614 fqs=48343855
  [323294.927138](t=48734941 jiffies g=6962468 c=6962467 
q=43612779)
  [323294.927210] Task dump for CPU 71:
  [323294.927241] fs_inod R  running task0 151173  78575 
0x00040004
  [323294.927312] Call Trace:

[Kernel-packages] [Bug 1632471] Comment bridged from LTC Bugzilla

2016-10-28 Thread bugproxy 
--- Comment From sarah.han...@us.ibm.com 2016-10-28 11:23 EDT---
What's the next step for this bug?

--- Comment From s...@us.ibm.com 2016-10-28 11:28 EDT---
Thank you.

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https://bugs.launchpad.net/bugs/1632471

Title:
  Briggs: ISST-LTE:UbuntuKVM: system hangs, console shows all of these
  messages  raw_spin_lock_irqsave, rcu_sched, rcu_bh detected stalls on
  CPUs #166

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Yakkety:
  Fix Released

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2016-08-15 11:56:22 
==
  We have the SuperMicro system "Briggs" that have 2 Qlogic cards on it  (16Gb 
and 8Gb) connect to the V7000 storage. 
  We install Ubuntu 16.04.1 kernel -34 on it and run test BASE/IO over weekend 
on the bare metal mode . System seems to hang now, it responses to ping only, 
nothing else. 
  Open the console, it doesn't give out the login promt except all of these 
errors print out ...
  [323294.686996] INFO: rcu_bh detected stalls on CPUs/tasks:
  [323294.687105]   3-...: (1 GPs behind) 
idle=813/140/0 softirq=9880043/9935887 fqs=48656494
  [323294.687187]   71-...: (1 GPs behind) 
idle=a99/140/0 softirq=9875483/9935684 fqs=48656494
  [323294.687268]   153-...: (1 GPs behind) 
idle=321/140/0 softirq=3948104/3976836 fqs=48656494
  [323294.687346]   (detected by 75, t=48672447 jiffies, g=79, 
c=78, q=706)
  [323294.687427] Task dump for CPU 3:
  [323294.687462] gmond   R  running task0 16394  1 
0x00040004
  [323294.687542] Call Trace:
  [323294.687568] [c03fb3bdb700] [c03fb3bdb740] 0xc03fb3bdb740 
(unreliable)
  [323294.687648] [c03fb3bdb8d0] [c03fec8de900] 0xc03fec8de900
  [323294.687716] [c03fb3bdb920] [0020] 0x20
  [323294.687773] [c03fb3bdb960] [c03fb3bdb9b0] 0xc03fb3bdb9b0
  [323294.687842] [c03fb3bdb9b0] [c00f9d14] 
task_sched_runtime+0xc4/0x250
  [323294.687922] [c03fb3bdba20] [c01003d8] 
thread_group_cputime+0xc8/0x1c0
  [323294.688002] [c03fb3bdba80] [c0100720] 
thread_group_cputime_adjusted+0x40/0x80
  [323294.688082] [c03fb3bdbae0] [c0385428] do_task_stat+0x2b8/0xaf0
  [323294.688152] [c03fb3bdbc60] [c037c710] 
proc_single_show+0x80/0x100
  [323294.688232] [c03fb3bdbcb0] [c0317808] seq_read+0xe8/0x530
  [323294.688302] [c03fb3bdbd50] [c02e170c] __vfs_read+0x6c/0xe0
  [323294.688412] [c03fb3bdbd90] [c02e2464] vfs_read+0xa4/0x1c0
  [323294.688481] [c03fb3bdbde0] [c02e356c] SyS_read+0x6c/0x110
  [323294.688550] [c03fb3bdbe30] [c0009204] system_call+0x38/0xb4
  [323294.688618] Task dump for CPU 71:
  [323294.688653] fs_inod R  running task0 151173  78575 
0x00040004
  [323294.688735] Call Trace:
  [323294.688760] [c03fbcd17890] [c05cc0adee00] 0xc05cc0adee00 
(unreliable)
  [323294.688840] Task dump for CPU 153:
  [323294.688876] fs_inod D 3fffafd1efb8 0 151172  79296 
0x00040004
  [323294.688956] Call Trace:
  [323294.688981] [c05a398675e0] [004352ca] 0x4352ca (unreliable)
  [323294.689049] [c05a398677b0] [c03feee5e900] 0xc03feee5e900
  [323294.689118] [c05a39867800] [c0ae8604] __schedule+0x314/0x990
  [323294.689187] [c05a398678d0] [c0ae8cc8] schedule+0x48/0xc0
  [323294.689257] [c05a39867900] [c0aecc08] 
rwsem_down_write_failed+0x2b8/0x410
  [323294.689337] [c05a39867990] [c0aebdf8] down_write+0x78/0xa0
  [323294.689407] [c05a398679c0] [c02797bc] 
unlink_file_vma+0x4c/0x90
  [323294.689475] [c05a39867a00] [c0270110] 
free_pgtables+0x100/0x1c0
  [323294.689543] [c05a39867a50] [c027d4e0] exit_mmap+0x100/0x1a0
  [323294.689612] [c05a39867b10] [c00b5098] mmput+0xa8/0x1b0
  [323294.689681] [c05a39867b40] [c02ec740] 
flush_old_exec+0x680/0x840
  [323294.689792] [c05a39867bb0] [c036412c] 
load_elf_binary+0x43c/0xf90
  [323294.689872] [c05a39867c90] [c02ecbb8] 
search_binary_handler+0xe8/0x2a0
  [323294.689951] [c05a39867d20] [c02edad0] 
do_execveat_common.isra.14+0x600/0x850
  [323294.690031] [c05a39867df0] [c02ee13c] SyS_execve+0x5c/0x80
  [323294.690098] [c05a39867e30] [c0009204] system_call+0x38/0xb4
  [323294.926994] INFO: rcu_sched self-detected stall on CPU
  [323294.927058]   113-...: (48720536 ticks this GP) 
idle=df7/141/0 softirq=3730603/3730614 fqs=48343855
  [323294.927138](t=48734941 jiffies g=6962468 c=6962467 
q=43612779)
  [323294.927210] Task dump for CPU 71:
  [323294.927241] fs_inod R  running task0 151173